The present research focuses on the effects of aluminum (Al) and silicon carbide (SiC) hybridization mechanical morphological properties Al SiC particles reinforced hybrid epoxy composites. Composites were prepared by hand lay-up technique at five levels reinforcement loading (10, 20, 30, 40, 50 wt%). Aluminum powder utilized as a ratio (1:1) during composite preparation. Microstructural analys...

Many hydrogenation reactions are catalyzed by metal oxides. A particularly important case is the synthesis of methanol from syngas (H2, CO, CO2). Although presently mainly ZnO-supported Cu particles are used in the technical process, ZnO alone is also active as a catalyst for this process. According to the standard model the sources for the hydrogen species in the hydrogenation reactions are hy...

1 UTM Razak School of Engineering and Advanced Technology, Universiti Teknologi Malaysia, International Campus, 54100 Kuala Lumpur, Malaysia. 2 Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia. 3 Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Batu Pahat, Johor, Malaysia. 4 Faculty of Me...

A comprehensive investigation was carried out to minimize the cost price of the rock fragmentation process including: drilling, blasting, secondary blasting and separating the large boulders (oversize rocks) while loading, until the optimized fragmentation, powder factor and ratio of burden (B) to blasthole diameter (?h) were achieved by doing several stages of drilling and blasting practically...

This current study reports preparation of Nickel-Gadolinium doped Ceria (Ni-GDC) composite via controlled unidirectional freeze casting of aqueous-based GDC slurry completed with nickel infiltrated into the porous GDC samples. Gadolinium doped ceria powder prepared by gel-combustion synthesis method. The oxide powder was confirmed to be the fluorite-structured of Ce0.8Gd0.2O1.9 solid solution b...

This laboratory study was conducted to comparatively assess the effects of different fillers and moisture on mechanical properties performance asphalt mixtures. In study, a typical Pen70 base modified with four filler materials, namely limestone powder, cement, slaked (hydrated) lime, brake pad produce mortars that were subsequently used prepare Thereafter, various tests, dynamic uniaxial repea...

The reduction of CuO dispersed on ̄uorite-type oxide catalysts, namely La-doped CeO2 and Y-doped ZrO2 was studied in this work. On both supports distinct copper species were identi®ed as a function of copper content by temperatureprogrammed reduction (TPR) by H2 and CH4, X-ray photoelectron spectroscopy (XPS), X-ray powder diffraction (XRD) and scanning transmission electron microscopy/energy d...